JP3609586B2 - Video playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for displaying one or a plurality of still images captured from a moving image in a video reproducing apparatus that reproduces information from a recording medium such as a video disc on which the moving image is recorded.
[0002]
[Prior art]
For example, as a technique for displaying a plurality of still images in a video playback apparatus, in a video CD playback apparatus, a display screen is divided into multiple screens, and each of the beginning portions of each song (track) stored in the video CD is used. A technique for displaying an image on each divided screen is known. In this technique, a moving image at the beginning of each song is sequentially played back, and the moving image after a predetermined time is frozen and displayed as a still image.
[0003]
Also, as described in Japanese Patent Application Laid-Open No. 8-265703, there is known a technique for capturing a still image at an arbitrary timing designated by a user from a moving image reproduced from an information recording medium and displaying it on a screen. Yes.
[0004]
[Problems to be solved by the invention]
Each of these conventional techniques is a technique for displaying one or a plurality of still images taken from a moving image.
[0005]
Therefore, for example, according to the technique for displaying a plurality of still images on the multi-screen described above, the still images displayed corresponding to each song can be used as an index for estimating the contents of each song. it can.
[0006]
However, simply performing such a display is not necessarily sufficient for the use of a user's moving image, and it is desirable to be able to use a moving image incorporating the still image associated with the displayed still image.
[0007]
Therefore, the present invention captures and stores one or more scenes as a still image at an arbitrary timing from a moving image, displays the stored one or more still images, and corresponds to the still image selected during display. Therefore, an object of the present invention is to provide a video playback device that starts playback of a moving image including the scene.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a video playback apparatus that plays back a moving image stored in a storage medium, the stored image selecting means for accepting selection of an arbitrary scene of the moving image being played, and the stored image The image storage means for storing one or a plurality of still images constituting the scene in which the selection means accepts the selection in the moving image, and the position of the still image in the moving image for each still image stored by the image storage means address storage means for storing an address, the image one or more stored in the storage unit and a menu display means for displaying a still image, the one of the one or more still images said menu display means is displayed Reproduction image selection means for accepting selection of a still image, and reproduction of a position in the moving image stored in the address storage means for the still image accepted by the reproduction image selection means. And a jump reproducing means for reproducing a moving image from the storage medium as a position for starting the video.
[0009]
According to such a video reproduction apparatus, the user can capture one or more arbitrary scenes from a moving image as a still image and store them, and can display the stored one or more still images. Further, from this display, it is possible to select a scene to start playback while confirming its contents, and start playback of a moving image including the scene from a scene corresponding to the selected still image.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a video playback apparatus according to the present invention will be described taking application to a video CD playback apparatus as an example.
[0011]
FIG. 1 shows the configuration of a video playback apparatus according to this embodiment.
[0012]
In the figure, a disk drive unit 1 performs disk rotation control, optical pickup traverse, tracking, focus control, and the like in accordance with control of a servo control circuit (not shown). The reproduction control unit 2 controls reading of the disk drive unit l and jumping of the read position according to a command from the CPU 7 and sends image data read from the disk to the decoder unit 3. Further, the reproduction control unit 2 sends the sector ID address of the sector from which the image data has been read to the ID address control unit l3. Here, on the disk, data is divided into a plurality of data blocks, and each data block is assigned a sector ID address indicating its position. The image data is encoded by the MPEG method and stored on the disk.
[0013]
The decoder unit 3 decodes the image data encoded by the MPEG system sent from the disk drive unit 1 and sends the decoded image data to the display control unit 4.
[0014]
On the other hand, the ID address control unit 13 holds the sector ID address of the data block that has been decoded by the decoder unit 3, and further, the sector ID only for the time until the image data of each data block is decoded and displayed. The address is delayed, and the sector ID address is stored in the sector ID address memory 12 in response to a sector ID address write command from the CPU 7. Thus, even when the decoding order and the display order are different as in the MPEG system, the sector ID addresses are rearranged in the display order and stored in the sector ID address memory 12. Here, the sector ID address memory 12 is divided into nine memory blocks managed by block numbers 1 to 9, and a total of nine sector ID addresses can be stored, one for each. Each sector ID address stored for each of the nine memory blocks in the sector ID address memory 12 can be deleted from the CPU 7 by an image deletion command.
[0015]
Next, the menu frame memory l0 is divided into nine memory blocks of vertical and horizontal managed by block numbers from 1 to 9, and each memory block is thinned down to vertical 1/3 horizontal to l / 9 size. Reduced image data can be stored.
[0016]
The ROMll is a read-only memory in which image data of characters 1 to 9 is stored in advance. As will be described later, this character image data is overwritten on a part of nine reduced image data in the menu frame memory 10.
[0017]
The display control unit 4 converts the image data sent from the decoder unit 3 into digital RGB video data and temporarily stores it in the image frame memory 9 during normal reproduction, and then sends the digital RGB video data to the RGB encoder 5. When the display control unit 4 receives an image storage command from the CPU 7, the display control unit 4 selects one vacant memory block from the nine memory blocks in the menu frame memory l0, and displays the image in the image frame memory 9 at that time as l. Is reduced to / 9 and stored in the memory block of the selected menu frame memory 10. Further, the display control unit 4 reads out the image data of the number corresponding to the selected memory block number from the ROM 11 and overwrites it at a predetermined position in the selected memory block, for example, the upper left portion of the image. If there is no free memory block in the image frame memory 9, the display control unit 4 turns on the indicator lamp 14 indicating that the memory is full.
[0018]
Further, when receiving a menu display command from the CPU 7, the display control unit 4 sends the image data stored in each memory block of the menu frame memory 10 to the RGB encoder 5. When the image deletion command is received from the CPU 7, the image data stored in each of the nine memory blocks of the menu frame memory 10 is deleted.
[0019]
Next, the RGB encoder 5 converts the transmitted image data (digital RGB video data) into an analog RGB video signal so that it can be displayed on the monitor 6, and supplies the analog RGB video signal to the monitor 6. As a result, an image is displayed on the monitor 6.
[0020]
The operation panel 8 includes playback, stop, menu display, image storage, jump, menu deletion, 10 key buttons (number keys from 0 to 9), and the like.
[0021]
Hereinafter, the operation of the video reproduction apparatus according to the present embodiment will be described.
[0022]
In the video playback apparatus according to the present embodiment, operations such as playback of a moving image stored on a disc, stop fast forward, fast reverse, track jump, and the like are the same as those of a conventional apparatus, and thus description thereof is omitted. Here, the characteristic part of the present embodiment will be described.
[0023]
First, the operation of the operation panel 8 when the image storage button is pressed will be described.
[0024]
FIG. 2 shows a processing procedure of processing performed by the video reproduction apparatus in this case.
[0025]
The image storage button is a button for the operator to store the sector ID address of an arbitrary position image and the image during moving image reproduction.
[0026]
As shown in the figure, the display control unit 4 notified from the CPU 7 that the image storage button has been pressed checks whether there is an empty memory block in the menu frame memory 10 in step Sl, and an empty memory block. If there is, the vacant memory block number is stored in step S2, and the image data of the image frame memory 9 (image data for one still image constituting the moving image) is vertically and horizontally 1/3 in step S3. Decrease and reduce to 1/9. In step S4, the image reduced in step S3 is stored in the memory block of the menu frame memory 10 corresponding to the memory block number stored in step S2.
[0027]
Next, in step S5, the display control unit 4 reads out image data having a number corresponding to the memory block number stored in step S2 from the ROMll. In step S6, the image data is overwritten on the upper left portion of the reduced image data in the memory block storing the image data in step S4.
[0028]
On the other hand, the ID address control unit 13 notified from the CPU 7 that the image storage button has been pressed, in step S7, stores the ID address in the memory block of the sector ID address memory 12 corresponding to the memory block number stored in step S2. Control is performed so as to store the sector ID address of the image data displayed on the monitor 6 when the image storage button held by the control unit 13 is delayed.
[0029]
If it is determined in step S1 that there is no free memory block, the display control unit 4 displays an indicator lamp 14 indicating that the operation is invalid in step S8 for a predetermined time (for example, 0. 0). Lights for 5 seconds.
[0030]
Next, an operation when the menu display button on the operation panel 8 is pressed will be described.
[0031]
FIG. 3 shows a processing procedure of processing performed in this case.
[0032]
Here, the menu display button is a button for performing menu display for displaying the reduced nine screens already stored in the menu frame memory 10 as a multi-screen composed of 3 × 3 reduced screens.
[0033]
In this process, the display control unit 4 notified from the CPU 7 that the menu display button has been pressed determines whether or not the menu is currently being displayed in step S9. If the menu is being displayed, the process proceeds to step S10 to stop displaying the menu. In step Sll, it is determined whether the reproduction of the moving image is currently paused. If it is paused, the process proceeds to step S12, the display control unit 4 is controlled, the pause is released, the reproduction is resumed, and the process is terminated. On the other hand, if it is not paused, the process is terminated as it is.
[0034]
On the other hand, if the menu is not being displayed in step S9, the process proceeds to step S13 to display the menu.
[0035]
FIG. 4 shows the detailed procedure of the process for displaying the menu in step S13.
[0036]
As shown in the figure, in this process, the display control unit 4 first determines whether or not a reduced image used for menu display is stored in the menu frame memory 10 in step S14. If at least one reduced image to be displayed is stored, the process proceeds to step S15 to determine whether or not a moving image is currently being reproduced. If a moving image is being reproduced, the process proceeds to step S16, where the reproduction is paused, and in step S17, nine reduced images in the menu frame memory 10 are formed in the RGB encoder 5 to form a multi-screen consisting of 3 × 3 reduced images. Is displayed on the monitor 6 and the process is terminated. At this time, on the upper left of each reduced image displayed in the multi-screen format, the image data written when the reduced image is stored in the menu frame memory 10, that is, numbers 1 to 9 are displayed. Of the multi-screen composed of 3 × 3 reduced screens, a portion where the corresponding reduced image (to be displayed) is not stored in the menu frame memory 10 is displayed as a blank.
[0037]
If no image to be displayed in the menu frame memory 10 is stored in step S14, the display control unit 4 proceeds to step S19 to turn on the indicator lamp 14 for a predetermined time, and in step S20 the menu is displayed. Stop display. In step S21, it is determined whether the reproduction is paused. If the reproduction is paused, the pause is canceled in step S22, the reproduction is resumed, and the process is terminated. If it is not paused, the process is terminated.
[0038]
Next, an operation when the jump button on the operation panel 8 is pressed will be described.
[0039]
FIG. 5 shows a processing procedure of processing performed in this case.
[0040]
Here, the jump button is a button for starting playback of a moving image from a position corresponding to the reduced image stored by the image storage button.
[0041]
In this case, as shown in the figure, when the jump button is pressed, the CPU 7 determines whether the button pressed in step S24 is valid when the next button is input in step S23. Here, since nine scenes can be stored, the number of the memory block of the menu frame memory 10 that records the reduced image designated by the image storage button among the numbers from 1 to 9, is the button next to the jump button. It becomes effective when it is input.
[0042]
The display control unit 4 notified of a valid number button from the CPU 7 determines whether the menu is being displayed in step S25. If the menu is being displayed, the menu display is stopped in step S26. On the other hand, the CPU 7 reads out the sector ID address corresponding to the valid number from the sector ID address memory 12 in step S27. In step S28, a jump command is sent to the reproduction control unit 2 together with the sector ID address read in step S27.
[0043]
The playback control unit 4 searches the sent sector ID address, and if detected, starts playback of a moving image from the position of the sector ID address.
[0044]
On the other hand, if a button other than a valid number button is pressed in step S24, the process proceeds to step S29, and the display control unit 4 notified from the CPU 7 that a button other than a valid number button has been pressed. The indicator lamp 14 is turned on for a predetermined time, and it is determined in step S30 whether the menu is being displayed. If the menu is being displayed, the menu display is stopped in step S31 and the process proceeds to step S32. In step S32, it is determined whether or not the reproduction of the moving image is paused. If the reproduction is paused, the pause is canceled in step S33, the reproduction is resumed, and the process is terminated. If it is not paused, the process is terminated as it is.
[0045]
Next, an operation when the menu delete button on the operation panel 8 is pressed will be described.
[0046]
The menu delete button is a button for erasing the contents of arbitrary memory blocks in the menu frame memory 10 and the sector ID address memory 12.
[0047]
FIG. 6 shows a processing procedure of processing performed in this case.
[0048]
As shown in the figure, in this process, when the menu delete button is pressed, the CPU 7 determines whether or not the menu is being displayed in step S34. If the menu is being displayed, the process proceeds to step S35 and the next button is pressed. I wait for you.
[0049]
On the other hand, if the menu is not being displayed, the process proceeds to step S39. In step S39, the process of FIG. 4 is performed. That is, if the reduced image to be displayed is in the menu frame memory 10, the moving image being reproduced is paused or the menu is displayed. Then, the process proceeds to step S35 and waits for the next button to be pressed. However, if there is no reduced image to be displayed in step S39, the indicator lamp 14 is turned on or the reproduction of the moving image being paused is restarted as in the case of the process of FIG. 4, and the process of FIG.
[0050]
In step S35, when the button next to the menu delete button is pressed, the process proceeds to step S36. In step S36, it is determined whether the pressed button is valid. Here, since nine scenes can be stored, the number of the memory block of the menu frame memory 10 that records the reduced image designated by the image storage button among the numbers from 1 to 9 is the number next to the menu delete button. This is valid when the input is a button.
[0051]
If the button next to the menu delete button is valid, the process proceeds to step S37, where the CPU 7 controls the ID address control unit 13, and the sector ID address memory l2 and the menu frame memory l0 corresponding to the valid number. The contents in the memory block are erased, and the process proceeds to step S38. Here, the memory block of the menu frame memory 10 is erased by writing a blank image in the memory block.
[0052]
Next, in step S38, the processing of FIG. 4 is executed as before. Then, the menu display of the reduced image remaining in the menu frame memory 10 after erasing the memory block of the menu frame memory 10 is performed. If there is no reduced image remaining in the menu frame memory 10 after erasing the memory block of the menu frame memory 10, the indicator lamp 14 is turned on or is paused as in the processing of FIG. 4. The moving image reproduction is resumed, and the processing in FIG. 6 is terminated.
[0053]
If the menu is displayed again in the process of step 38, the process returns to step S35 to wait for the button input again.
[0054]
This is a case where an invalid button is pressed in step S36. In this case, the process proceeds to step S40, where the CPU 7 controls the display control unit 4 to turn on the indicator lamp l4 indicating that the operation is invalid for a predetermined time. Then, the process proceeds to step S41. In step S41, it is determined whether the button pressed in step S36 is a menu display button. If the button is a menu display button, the process proceeds to step S42, the menu display is stopped, and the video playback is paused in step S43. If it is paused, the process proceeds to step S44, where the pause is canceled and reproduction is resumed, and the process is terminated. On the other hand, if it is not paused, the process is terminated as it is.
[0055]
If it is determined in step S41 that the pressed button is not the menu display button, the process returns to step S35 to wait for the button input again.
[0056]
The configuration and operation of the video playback apparatus according to this embodiment have been described above.
[0057]
Hereinafter, an aspect of the use of such a video playback device will be described.
[0058]
When an image storage button is pressed when a scene is displayed during video playback, one scene (still image) constituting the scene is reduced in the menu frame memory 1 according to the processing procedure of FIG. Is remembered as Further, when a scene of another scene is to be stored, when the scene is displayed, the image storage button is sequentially pressed, so that the scene at the time when the image storage button is pressed is sequentially reduced in the menu frame memory 1. Images and numbers are stored. In the present embodiment, a maximum of nine scenes can be stored in this way.
[0059]
Thereafter, in order to view a scene again, the reduced image and number of each scene scene stored by pressing the menu display button is displayed on the monitor 6 as a menu, followed by the jump button and the scene of the desired scene. If the number is selected with the l0 key button, the scene including the selected scene is reproduced from the scene by the processing of FIG. If you want to see the scene repeatedly, repeat the jump button and select the scene number with the l0 key button.
[0060]
In addition, in the menu display performed by the processing of FIG. 6 activated by pressing the image deletion button, the number of the scene desired to be deleted is designated by the l0 key button while confirming the scene of each stored scene. Thus, it is possible to delete a stored scene of an arbitrary scene and generate a room for storing a scene of a new scene.
[0061]
Here, for example, the present video reproduction apparatus stores a plurality of moving images shot at a plurality of angles in a single data stream in a time-division manner and stores each of the angles according to the viewer's selection. When applied to a digital video disc that can be played back while switching images, the scene such as the start position of each angle movie is memorized with the image memory button during playback of each angle movie. It is possible to use the image by switching and reproducing the angle image while confirming.
[0062]
As described above, according to the video reproduction apparatus according to the present embodiment, one or more arbitrary scenes constituting the moving image are stored during moving image reproduction, and the one or plural scenes are displayed simultaneously. It is possible to accept selection of each displayed scene and to start playing a moving image from the accepted scene. Also, by selecting each displayed scene, it is possible to delete the stored scene while visually confirming the stored scene.
[0063]
In the above embodiment, nine reduced images obtained by reducing still images to 1/9 are stored, and nine reduced images are displayed in the menu display. However, the number of reduced images and the reduction ratio are as follows. Other than this may be used. In addition, not all the reduced images stored in one screen are necessarily displayed, and for example, they may be displayed separately on a plurality of screens that are switched by a user operation. Further, instead of the still image, a part of the moving image may be stored and displayed as a menu.
[0064]
【The invention's effect】
As described above, according to the present invention, a plurality of scenes are captured and stored as still images at an arbitrary timing from a moving image, the plurality of stored still images are displayed, and the selected still image is displayed. It is possible to provide a video playback apparatus that starts playback of a moving image including the scene from the scene.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a video display device.
FIG. 2 is a flowchart showing an image storage processing procedure in the video display apparatus.
FIG. 3 is a flowchart showing a menu display processing procedure in the video display apparatus.
FIG. 4 is a flowchart showing a menu display processing procedure in the video display apparatus.
FIG. 5 is a flowchart showing a processing procedure of a jump in the video display device.
FIG. 6 is a flowchart showing an image deletion processing procedure in the video display apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disc drive part 2 Reproduction | regeneration control part 3 Decoder unit 4 Display control part 5 RGB encoder 6 Monitor 7 CPU
8 Operation panel 9 Image frame memory 10 Menu frame memory 11 ROM
12 Sector ID address memory 13 ID address control unit 14 Indicator lamp

Claims (8)

A video playback device that plays back a moving image stored in a storage medium,
Stored image selection means for accepting selection of an arbitrary scene of the video being played;
Image storage means for storing one or a plurality of still images constituting the scene in the moving image in which the stored image selection means accepts the selection;
For each still image stored by the image storage unit, an address storage unit that stores an address representing a position in the moving image of the still image;
Menu display means for displaying one or more still images stored in the image storage means;
Reproduction image selection means for accepting selection of one of the one or more still images displayed by the menu display means;
Jump playback means for playing back a moving image from the storage medium, with the position in the moving image stored in the address storage means as a start position for the still image accepted by the playback image selection means. And
The image storage means stores the still image by reducing it in the vertical and horizontal directions,
The video display device, wherein the menu display means displays a plurality of still images stored in the image storage means in combination on one screen.   The video playback device according to claim 1,
  The image storage means stores the image by reducing the amount of vertical and horizontal data of the still image to a fraction of the number of still images that the menu display means displays in combination on one screen. apparatus. The video playback device according to claim 1 or 2,
When the stored image selection unit accepts selection of a new scene, the image storage unit includes a unit that outputs a warning when there is no room in the image storage unit to store a still image constituting the scene in the moving image. A video reproducing apparatus characterized by that. The video playback device according to claim 1, 2, or 3,
When the menu display is instructed to display the menu during the reproduction of the moving image, the menu display means stops the reproduction of the moving image and displays one or more still images stored in the image storage means. A video playback apparatus that resumes playback of the stopped moving image when an instruction to end menu display is given during display of a plurality of still images. The video playback device according to claim 1, 2, 3 or 4,
The menu display means displays each of a plurality of still images stored in the image storage means with an identification number,
The video playback device, wherein the playback image selection means accepts selection of the one still image by inputting an identification number assigned to the still image. The video playback device according to claim 5,
A means for outputting a warning when the reproduction image selection means accepts a number other than the identification number displayed by the menu display means attached to a plurality of still images stored in the image storage means; A video playback device characterized by the above. The video playback device according to claim 5 or 6, wherein
A deletion image selection means for accepting selection of a still image among a plurality of still images displayed by the menu display means by inputting an identification number attached to the still image;
An image deletion unit that deletes the still image received by the deletion image selection unit from the storage medium, and deletes the position of the deleted still image stored in the address storage unit in the moving image. A video playback device characterized by the above.   The video playback device according to claim 1, 2, 3, 4, 5, 6, or 7.
  The storage medium stores MPEG data which is image data encoded by the MPEG system.
  Decoding means for decoding the MPEG data and outputting in the playback order of the video;
  Address control means for controlling the address storage means,
  The address control unit holds the address of the data block of the MPEG data, which is decoded by the decoding unit, until the data block is decoded and outputted, so that the stored image selection unit selects the data block. A video playback apparatus characterized in that the address storage means stores the address of a data block constituting a still picture that was played back when it was received.

Images